CN215117115U

CN215117115U - Modularization filter support

Info

Publication number: CN215117115U
Application number: CN202121528165.8U
Authority: CN
Inventors: 袁国奎
Original assignee: ZHUHAI CHUANFU OPTICAL TECHNOLOGY CO LTD
Current assignee: ZHUHAI CHUANFU OPTICAL TECHNOLOGY CO LTD
Priority date: 2021-07-06
Filing date: 2021-07-06
Publication date: 2021-12-10
Anticipated expiration: 2031-07-06

Abstract

The utility model relates to a modularized filter support, which comprises a filter mounting support, wherein the outer surface of the front side is provided with a lens clamping piece which is positioned at the opposite side of a first through hole and is used for splicing and mounting filter lenses with different functions; the adjustable filter support is provided with a filter which can be adjusted in a rotating way on the front side, and the circumferential outer surface is also provided with an adjusting hand wheel which is connected with the filter in a driving way; the lens locking adapter ring is sleeved on the front end shell of the lens and locked and fixed so as to assemble the modular filter support and the lens together; and filter lens installing support, adjustable filter lens support and camera lens locking joint circle are independent module, and production equipment is nimble, convenient with the use, and the production and processing degree of difficulty and with low costs, production cycle is short to can dispose the camera lens locking joint circle of different specifications in order being applicable to different camera lenses according to actual demand, the accessible is pulled down and is assembled filter lens installing support and switch different filter lens modes in addition, in order to satisfy different shooting demands, and the function is various.

Description

Modularization filter support

Technical Field

The utility model belongs to the technical field of photographic goods, in particular to modularization filter support.

Background

The filter is one of the most commonly used photographic devices and is a common photographic accessory that fits in front of the lens to handle the different functions of the incoming imaging light during photography. However, the applicant found that: the filter supports with different functions in the market are respectively provided with inherent lens connecting rings which are fixedly arranged on a lens, the filter supports are single in function and only suitable for being arranged on the lens with a certain size specification, the application range is extremely small, however, photographic enthusiasts usually have more than two lenses with different sizes, more than two different filters with different lens connecting rings are configured for the filter with the same function, the cost is increased, the carrying and storage difficulty is increased, meanwhile, manufacturers need to design and open the molds for the filters with different lens connecting ring sizes, the input cost is obviously increased, the production difficulty is increased, and the production period is long.

SUMMERY OF THE UTILITY MODEL

For solving the above-mentioned problem that exists among the prior art, the utility model provides a can produce the equipment and use nimble, convenient, the production and processing degree of difficulty and with low costs, production cycle is short, and changeable different filter modes to satisfy different shooting demands, the manifold modularization filter support of function.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a modular filter support comprises

The filter lens mounting bracket is provided with a first through hole, and the outer surface of the front side is provided with a lens clamping piece positioned on the opposite side of the first through hole and used for inserting and mounting filter lenses with different functions;

the adjustable filter support is provided with a second through hole, a filter which can be adjusted in a rotating mode is arranged on the front side of the second through hole, an adjusting hand wheel is further arranged on the circumferential outer surface of the adjustable filter support, and the adjusting hand wheel is in driving connection with the filter;

the lens locking adapter ring is provided with a third through hole and is used for being sleeved on the front end shell of the lens and locked and fixed so as to assemble the modular filter support and the lens together;

the filter lens mounting bracket, the adjustable filter lens bracket and the lens locking adapter ring are independent modules, the filter lens mounting bracket and the lens locking adapter ring are detachably assembled on the front side and the rear side of the adjustable filter lens bracket respectively, and the first through hole, the second through hole and the third through hole are coaxial.

Furthermore, a first annular groove coaxial with the first through hole is formed in the outer surface of the rear side of the filter lens mounting support, more than one positioning clamping block and one locking sliding block are arranged on the groove wall of the first annular groove, a locking pin capable of axially moving is arranged on the circumferential outer surface of the filter lens mounting support, and the locking pin penetrates through the circumferential outer surface of the filter lens mounting support and is in driving connection with the locking sliding block; when the filter lens mounting bracket is assembled at the front side of the adjustable filter lens bracket, the circumferential edge of the adjustable filter lens bracket is rotatably mounted in the first annular groove through the positioning fixture block and the locking slide block;

the rear side outer surface of the adjustable filter support is provided with a first annular connecting portion which is coaxial with the second through hole and protrudes backwards, the circumferential outer surface of the front end of the lens locking connection ring is provided with a second annular connecting portion, and when the lens locking connection ring is assembled on the rear side of the adjustable filter support, the first annular connecting portion is in threaded connection with the second annular connecting portion.

Furthermore, the lens locking adapter comprises an adapter body, a locking ring, a protection strip and a locking operation ring; the inner ring wall of the connecting ring main body is provided with a second annular groove, and the groove wall of the second annular groove is provided with a plurality of sections of inclined surfaces or annular inclined surfaces which are distributed at intervals in an annular manner at positions close to the front end of the connecting ring main body; the locking ring is an elastic circular ring with a fracture and is arranged in the second annular groove, and meanwhile, the protection strip is fixed on the inner annular wall of the locking ring; the locking operation ring can be sleeved at the rear end of the adapter ring main body in a screwing motion mode, and in the screwing process towards the front end of the adapter ring main body, the locking ring is driven to move towards the front end of the adapter ring main body and abut against the multi-section inclined planes or the annular inclined planes, and the locking operation ring and the multi-section inclined planes or the annular inclined planes are jointly extruded to be folded and deformed so as to clamp the front end shell of the lens.

Furthermore, a screwing limiting groove is formed in the circumferential outer surface of the adapter ring main body, and an inward protruding screwing limiting part is arranged on the locking operation ring; the screwing limiting part is positioned in the screwing limiting groove and moves back and forth along the screwing limiting groove in the process of screwing the locking operation ring.

Further, the turn limiting groove is a spiral groove provided around the circumferential outer surface of the adapter body, and the turn limiting portion is a screw or a pin fitted from the outer surface of the lock operation ring.

Furthermore, a second annular connecting part and a first screwing thread part are respectively arranged at the front end and the rear end of the circumferential outer surface of the adapter ring main body, the screwing limiting groove is positioned between the second annular connecting part and the first screwing thread part, and a second screwing thread part is arranged on the inner wall of the locking operation ring; when the locking operation ring is assembled, the locking operation ring is sleeved on the adapter body from the rear end of the adapter body, and the second screwing thread part is connected with the first screwing thread part in a matched mode.

Further, the locking operation ring is further provided with a locking screw, and the locking screw penetrates through the outer surface of the locking operation ring and can be screwed into abutting connection with the adapter body.

Furthermore, the front end hole wall of the third through hole is provided with more than two lens limiting upright columns, and the more than two lens limiting upright columns are located in front of the locking ring and the protection strip and distributed in an annular array.

Furthermore, the filter lens mounting bracket comprises a front filter bracket and a rear filter bracket, the front filter bracket can be separately stacked on the front side of the rear filter bracket, and one side of the front filter bracket is rotationally connected with the rear filter bracket; preceding filter support and back filter support are last to be equipped with preceding through-hole and the back through-hole with the axle center respectively, preceding through-hole constitutes first through-hole with the back through-hole jointly, the lens clamping piece sets up the front side surface at preceding filter support to the interval sets up the periphery at the through-hole in the front relatively.

Furthermore, the front side outer surface of the adjustable filter support is provided with a third annular groove which is coaxial with the second through hole and communicated with the second through hole, when the filter is installed on the front side of the adjustable filter support, the circumferential edge of the filter is installed in the third annular groove, and the adjusting hand wheel penetrates through the circumferential outer surface of the adjustable filter support and is in driving connection with the filter, so that the filter can rotate and be adjusted on the front side of the adjustable filter support.

The utility model discloses mainly have following beneficial effect:

1. through adopting the filter piece installing support for independent module, adjustable filter support and camera lens locking joint circle, the production equipment is nimble with the use, it is convenient, the production and processing degree of difficulty and cost have been reduced simultaneously, and can dispose the camera lens locking joint circle of different specifications in order to be applicable to different camera lenses according to actual demand, still general filter piece installing support and adjustable filter support of accessible mass production processing in advance, shorten production cycle and further reduction in production cost, and the accessible is pulled down and is assembled filter piece installing support and switch different filter modes, in order to satisfy different shooting demands, the function is various.

2. The lens locking collar is provided with the screwing limiting groove and the screwing limiting part, so that the screwing range of the locking operation ring can be effectively limited, the lens is prevented from being crushed or the locking operation ring falls off from the collar body due to excessive screwing, and the stability of the screwing motion of the locking operation ring can be effectively improved.

3. The filter support can turn over preceding filter support in the use to satisfy the shooting demand of difference, the switching operation is very simple, convenient, swift.

4. The locking operation ring and the connecting ring main body can be firmly locked by the locking screw arranged on the locking operation ring, so that loosening and misoperation of the locking operation ring are effectively avoided, and the locking performance is more stable and reliable.

Drawings

Fig. 1 is a schematic structural view of an embodiment of a modular filter holder according to the present invention;

FIG. 2 is a schematic structural view of a filter mounting bracket in an embodiment of a modular filter bracket according to the present invention;

fig. 3 is a schematic structural view of an embodiment of a modular filter support according to the present invention, showing a filter mounting support in an open position;

FIG. 4 is a schematic structural view of an adjustable filter support in an embodiment of a modular filter support according to the present invention;

fig. 5 is an exploded view of a lens locking collar in an embodiment of a modular filter holder according to the present invention;

fig. 6 is a schematic structural view of a lens locking collar in an embodiment of a modular filter holder according to the present invention;

fig. 7 is a schematic diagram of a cross-sectional view of a lens locking collar in a locked position in an embodiment of a modular filter holder according to the present invention;

fig. 8 is another schematic, partially cross-sectional, structural view of a lens locking collar in a locked position in an embodiment of a modular filter holder according to the present invention;

fig. 9 is a schematic diagram of a cross-sectional view of an embodiment of a modular filter holder according to the present invention with a lens locking collar in an unlocked state;

fig. 10 is a schematic front view of a lens locking ring in an embodiment of a modular filter holder according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 1-10:

the embodiment of the utility model provides a modularization filter support, including filter element installing support 1, adjustable filter support 2 and camera lens locking flange 3. Wherein the content of the first and second substances,

the filter lens mounting bracket 1 is provided with a first through hole 11, and the outer surface of the front side is provided with a lens clamping piece 12 which is positioned at the opposite side of the first through hole 11 and is used for inserting and mounting filter lenses with different functions.

The adjustable filter support 2 is provided with a second through hole 21, a filter 22 which can be adjusted in a rotating mode is arranged on the front side of the second through hole 21, an adjusting hand wheel 23 is further arranged on the circumferential outer surface of the adjustable filter support 2, and the adjusting hand wheel 23 is in driving connection with the filter 22; the concrete structure can be as follows: the front side outer surface of adjustable filter support 2 is equipped with the second through-hole 21 with the axle center and with the third annular groove 25 of second through-hole 21 intercommunication, when filter 22 was installed in the front side of adjustable filter support 2, the circumference marginal edge of filter 22 was installed in the third annular groove, adjusting hand wheel 23 passed the circumference surface of adjustable filter support 2 to be connected with filter 22 drive, make filter 22 rotate the regulation in the front side of adjustable filter support 2.

The lens locking adapter ring 3 is provided with a third through hole 311 and is used for being sleeved on a front end shell of the lens and being locked and fixed so as to assemble the modular filter support and the lens together; the concrete structure can be as follows: the lens locking adapter 3 comprises an adapter body 31, a locking ring 32, a protection strip 33 and a locking operation ring 34; a second annular groove 313 is formed in the inner annular wall of the connecting ring main body 31, and an annular inclined surface 314 (or a plurality of sections of inclined surfaces distributed annularly at intervals) is formed in the groove wall of the second annular groove 313, which is close to the front end of the connecting ring main body 31; the locking ring 32 is an elastic circular ring with a fracture (preferably a metal circular ring with a fracture), and is installed in the second annular groove 313, meanwhile, the protective strip 33 is fixed on the inner annular wall of the locking ring 32, the protective strip 33 is preferably a polyester cotton strip or a rubber strip, and can be fixed on the inner annular wall of the locking ring 32 through an adhesion mode; the locking operation ring 34 is rotatably sleeved at the rear end of the adapter body 31, as shown in fig. 6 to 9, a first screw thread portion 316 is arranged at the rear end of the circumferential outer surface of the adapter body 31, and a second screw thread portion 342 is arranged on the inner wall of the locking operation ring 34; when assembled, the lock operation ring 34 is fitted on the adapter body 31 from the rear end of the adapter body 31, and the second screw thread portion 342 is mated with the first screw thread portion 316. The locking operation ring 34 drives the locking ring 32 to move towards the front end of the adapter body 31 and abut against the multi-section inclined surface or annular inclined surface 314 in the screwing process towards the front end of the adapter body 31, and is folded and deformed under the co-extrusion action of the locking operation ring 34 and the annular inclined surface 314 (or the multi-section inclined surface) so as to clamp the front end shell of the lens (specifically, when the locking operation ring 34 is screwed towards the front end of the adapter body 31, the locking ring 32 is driven to move towards the front end of the adapter body 31 and abut against the multi-section inclined surface or annular inclined surface 314, the locking ring 32 is deformed under the co-extrusion action of the locking operation ring 34 and the multi-section inclined surface or annular inclined surface 314, is folded and tightened inwards, so that the inner diameter of the locking ring 32 is reduced to clamp the front end shell of the lens, conversely, the locking operation ring 34 is reversely screwed, the locking operation ring 34 moves away from the front end of the adapter body 31, and the locking ring 32 is under the combined action of restoring force and the multi-section inclined surface or annular inclined surface 314, and moves towards the direction of the locking operation ring 34 until the locking operation ring is separated from the multi-section inclined surface or the annular inclined surface 314, so that automatic resetting and unlocking are realized. The locking and unlocking operations are very simple, convenient and fast, the lens shell is clamped tightly by adopting the locking ring 32 ring, the stress on the lens shell is very uniform, the locking stability and reliability are high, and the use safety is high. ).

The filter mounting bracket 1, the adjustable filter bracket 2 and the lens locking adapter ring 3 of the utility model are independent modules, when in use, the filter mounting bracket 1 and the lens locking adapter ring 3 can be respectively and detachably assembled at the front side and the rear side of the adjustable filter bracket 2, and the first through hole 11, the second through hole 21 and the third through hole 311 are coaxial; the concrete structure can be as follows: the outer surface of the rear side of the filter mounting bracket 1 is provided with a first annular groove 18 which is coaxial with the first through hole 11, the wall of the first annular groove 18 is provided with more than one positioning fixture block 181 and one locking slide block 182, the circumferential outer surface of the filter mounting bracket 1 is provided with a locking pin 19 which can axially move, and the locking pin 19 penetrates from the circumferential outer surface of the filter mounting bracket 1 and is in driving connection with the locking slide block 182; when the filter mounting bracket 1 is assembled at the front side of the adjustable filter bracket 2, the circumferential edge of the adjustable filter bracket 2 is rotatably installed in the first annular groove 18 through the positioning fixture block 181 and the locking slide block 182; the rear side outer surface of adjustable filter support 2 is equipped with the bellied first annular connecting portion 24 backward with the coaxial axle center of second through-hole 21, the front end circumference surface of camera lens locking flange 3 is equipped with second annular connecting portion 312, when camera lens locking flange 3 assembles the rear side at adjustable filter support 2, first annular connecting portion 24 and second annular connecting portion 312 threaded connection.

Thus, modularization filter support can configure the camera lens locking adapter ring 3 of different specifications in order to be applicable to different camera lenses according to actual demand, the production equipment is nimble with the use, it is convenient, greatly reduced production and processing degree of difficulty and cost simultaneously, through general filter piece installing support 1 of mass production processing in advance and adjustable filter support 2, effectively shorten production cycle and further reduction in production cost, and the accessible is pulled down and is assembled filter piece installing support 1 and switch over different filter modes, in order to satisfy different shooting demands, the function is various.

As shown in fig. 1 to 3, the filter mounting bracket 1 includes a front filter bracket 14 and a rear filter bracket 15, the front filter bracket 14 is detachably stacked on the front side of the rear filter bracket 15, and one side of the front filter bracket 14 is rotatably connected to the rear filter bracket 15; preceding filter support 14 and back filter support 15 are last to be equipped with preceding through-hole 16 and the back through-hole 17 of coaxial axle respectively, preceding through-hole 16 constitutes first through-hole 11 with back through-hole 17 jointly, lens clamping piece 12 sets up the surface in the front of preceding filter support 14 to the interval sets up the periphery at preceding through-hole 16 relatively. Wherein, the piece is absorbed through magnetism between preceding filter support 14 and the back filter support 15 and is separated the closed assembly together, specifically is: the piece is magnet is inhaled to magnetism, magnet setting is on preceding filter support 14 and back filter support 15, for example: the magnets are embedded in the rear side surface of the front filter support 14 and the front side surface of the rear filter support 15, and the magnetic attraction pieces can be arranged on the side opposite to the side where the front filter support 14 and the rear filter support 15 are rotatably connected, or can be arranged on the rear side surface of the front filter support 14 and other positions of the front side surface of the rear filter support 15; the magnetic attraction piece can also be arranged on the front filter support 14 or the rear filter support 15; and the front filter support 14 and the rear filter support 15 can be separately stacked together through fasteners, specifically: the buckle piece comprises a buckle and a buckling position, the buckle and the buckling position are respectively arranged on the front filter support 14 and the rear filter support 15, or are respectively arranged on the rear filter support 15 and the front filter support 14, and when the front filter support 14 is closed and is overlapped with the rear filter support 15, the buckle is buckled on the buckling position.

Thus, modularization filter support in the use, through the preceding filter support 14 with filter piece installing support 1 opens, can cancel the function of filter piece on the filter piece installing support 1 to satisfy the shooting demand of difference, the function is various, the switching operation is very simple, convenient, swift.

As shown in fig. 6 to 9, a screwing limiting groove 315 is provided on the circumferential outer surface of the adapter body 31, specifically, a second annular connecting portion 312 and a first screwing thread portion 316 are provided at the front end and the rear end of the circumferential outer surface of the adapter body 31, respectively, and the screwing limiting groove 315 is located between the second annular connecting portion 312 and the first screwing thread portion 316; an inward protruding screwing limiting part 341 is arranged on the locking operation ring 34; the screwing limiting part 341 may be a screw, which is located in the screwing limiting groove 315 and moves back and forth along the screwing limiting groove 315 during screwing the locking operation ring 34; wherein the screw stopper groove 315 is a spiral groove provided around the circumferential outer surface of the adapter body 31, and the screw stopper portion 341 is a screw or a pin fitted from the outer surface of the lock operation ring 34.

Therefore, the screwing range of the locking operation ring 34 can be effectively limited, the problem that the lens is damaged due to excessive screwing is effectively solved, the problem that the locking operation ring 34 falls off from the joint body 31 due to excessive backward screwing (unlocking and screwing) can be avoided, and the stability of screwing motion of the locking operation ring 34 can be effectively improved.

As shown in fig. 5, 6, 7, 9 and 10, the locking operation ring 34 is further provided with a locking screw 343, and the locking screw 343 penetrates through the outer surface of the locking operation ring 34 and can be screwed into abutting connection with the joint ring main body 31 to firmly lock the locking operation ring 34 and the joint ring main body 31, so that loosening and misoperation of the locking operation ring 34 are effectively avoided, and the locking performance is more stable and reliable.

As shown in fig. 1 and 4, the adjustable filter holder 2 further includes a connecting ring 26, the circumferential outer surface of the connecting ring 26 has teeth 261, the connecting ring 26 is rotatably mounted in the third annular groove 25 by a pressing ring 27, the adjusting hand wheel 23 passes through the circumferential outer surface of the adjustable filter holder 2 and extends into the third annular groove 25 to be engaged with the teeth 261, the circumferential rim of the filter 22 is fixedly mounted on the inner ring of the connecting ring 26 and rotatably adjustably mounted on the adjustable filter holder 2 along with the connecting ring 26; wherein the press ring 27 is in threaded connection with the adjustable filter holder 2 at the third annular recess 25 (i.e. the external thread 271 and the internal thread 251) and the circumferential rim of the filter 22 is in threaded connection with the inner ring of the connection ring 26 (i.e. the external thread 221 and the internal thread 262). In this way, it is more convenient and quicker to replace the filter 22 on the adjustable filter support 2.

As shown in fig. 5 to 10, the front end wall of the third through hole 311 is provided with two or more lens limiting columns 317 (preferably four lens limiting columns 317), the two or more lens limiting columns 317 are located in front of the locking ring 32 and the protection bar 33 and are distributed in an annular array, each head limiting column 317 is a cylinder which is installed into the third through hole 311 from the surface of the joint ring main body 31 and is in threaded connection or fixed by gluing with the joint ring main body 31. Like this, can accurately control the position that the camera lens front end packed into third through-hole 311 through camera lens spacing stand 317, avoid leading to the filter support to appear taking off the problem of taking off in the use because of not packing into in place, also can avoid the filter support to take place the rotation in the use through the concave position department of the lens hood that camera lens spacing stand 317 card installed on the camera lens front end casing, further improve filter support's stability, reliability.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. A modular filter support, comprising

The filter lens mounting bracket (1) is provided with a first through hole (11), and the outer surface of the front side is provided with a lens clamping piece (12) positioned on the opposite side of the first through hole (11) and used for inserting and mounting filter lenses with different functions;

the adjustable filter support (2) is provided with a second through hole (21), a filter (22) which can be adjusted in a rotating mode is arranged on the front side of the second through hole (21), an adjusting hand wheel (23) is further arranged on the circumferential outer surface of the adjustable filter support (2), and the adjusting hand wheel (23) is in driving connection with the filter (22);

the lens locking adapter ring (3) is provided with a third through hole (311) and is used for being sleeved on the front end shell of the lens and being locked and fixed so as to assemble the modular filter support and the lens together;

filter lens installing support (1), adjustable filter support (2) and camera lens locking flange (3) and be independent module, moreover filter lens installing support (1) and camera lens locking flange (3) detachably assembly respectively are in the front side and the rear side of adjustable filter support (2), first through-hole (11), second through-hole (21) and third through-hole (311) are coaxial.

2. The modular filter support of claim 1, wherein: the outer surface of the rear side of the filter lens mounting bracket (1) is provided with a first annular groove (18) which is coaxial with the first through hole (11), the groove wall of the first annular groove (18) is provided with more than one positioning fixture block (181) and one locking slide block (182), the circumferential outer surface of the filter lens mounting bracket (1) is provided with a locking pin (19) which can axially move, and the locking pin (19) penetrates from the circumferential outer surface of the filter lens mounting bracket (1) and is in driving connection with the locking slide block (182); when the filter lens mounting bracket (1) is assembled at the front side of the adjustable filter lens bracket (2), the circumferential edge of the adjustable filter lens bracket (2) is rotatably mounted in the first annular groove (18) through a positioning fixture block (181) and a locking slide block (182);

the rear side outer surface of adjustable filter support (2) is equipped with first annular connecting portion (24) with the axle center with second through-hole (21) bellied backward, the front end circumference surface of camera lens locking flange (3) is equipped with second annular connecting portion (312), when camera lens locking flange (3) assembly is in the rear side of adjustable filter support (2), first annular connecting portion (24) and second annular connecting portion (312) threaded connection.

3. The modular filter support of claim 1 or 2, wherein: the lens locking joint ring (3) comprises a joint ring main body (31), a locking ring (32), a protection strip (33) and a locking operation ring (34); a second annular groove (313) is formed in the inner annular wall of the connecting ring main body (31), and multiple sections of inclined planes or annular inclined planes (314) which are distributed at intervals in an annular mode are arranged at the position, close to the front end of the connecting ring main body (31), of the groove wall of the second annular groove (313); the locking ring (32) is an elastic circular ring with a fracture and is arranged in the second annular groove (313), and the protection strip (33) is fixed on the inner annular wall of the locking ring (32); the locking operation ring (34) can be rotatably sleeved at the rear end of the adapter ring main body (31), and in the process of screwing towards the front end of the adapter ring main body (31), the locking ring (32) is driven to move towards the front end of the adapter ring main body (31) and abut against the multi-section inclined plane or the annular inclined plane (314), and the locking operation ring (34) and the multi-section inclined plane or the annular inclined plane (314) are jointly extruded to be drawn and deformed so as to clamp the front end shell of the lens.

4. The modular filter support of claim 3, wherein: a screwing limiting groove (315) is formed in the circumferential outer surface of the adapter body (31), and an inward protruding screwing limiting part (341) is formed in the locking operation ring (34); the screwing limiting part (341) is positioned in the screwing limiting groove (315) and moves back and forth along the screwing limiting groove (315) in the process of screwing the locking operation ring (34).

5. The modular filter support of claim 4, wherein: the turn-restricting groove (315) is a spiral groove provided around the circumferential outer surface of the adapter body (31), and the turn-restricting portion (341) is a screw or a pin fitted from the outer surface of the lock operation ring (34).

6. The modular filter support of claim 4 or 5, wherein: the front end and the rear end of the circumferential outer surface of the adapter body (31) are respectively provided with a second annular connecting part (312) and a first screwing thread part (316), the screwing limiting groove (315) is positioned between the second annular connecting part (312) and the first screwing thread part (316), and the inner wall of the locking operation ring (34) is provided with a second screwing thread part (342); when the connector is assembled, the locking operation ring (34) is sleeved on the connector body (31) from the rear end of the connector body (31), and the second screwing thread part (342) is matched and connected with the first screwing thread part (316).

7. The modular filter support of claim 6, wherein: the locking operation ring (34) is further provided with a locking screw (343), and the locking screw (343) penetrates through the outer surface of the locking operation ring (34) and can be screwed into abutting connection with the adapter body (31).

8. The modular filter support of claim 6, wherein: the front end hole wall of the third through hole (311) is provided with more than two lens limiting upright columns (317), and the more than two lens limiting upright columns (317) are located in front of the locking ring (32) and the protection strip (33) and distributed in an annular array.

9. The modular filter support of claim 1, 2, 4, 5, 7, or 8, wherein: the filter lens mounting bracket (1) comprises a front filter lens bracket (14) and a rear filter lens bracket (15), the front filter lens bracket (14) is detachably stacked on the front side of the rear filter lens bracket (15), and one side of the front filter lens bracket (14) is rotatably connected with the rear filter lens bracket (15); preceding filter support (14) and back filter support (15) are gone up and are equipped with preceding through-hole (16) and back through-hole (17) with the axle center respectively, preceding through-hole (16) constitute first through-hole (11) with back through-hole (17) jointly, lens clamping piece (12) set up the front side surface in preceding filter support (14) to the interval sets up the periphery in preceding through-hole (16) relatively.

10. The modular filter support of claim 1, 2, 4, 5, 7, or 8, wherein: the front side outer surface of adjustable filter support (2) is equipped with third annular groove (25) with the axle center of second through-hole (21) and with second through-hole (21) intercommunication, when filter (22) are installed in the front side of adjustable filter support (2), the circumference edge of filter (22) is installed in the third annular groove, adjusting hand wheel (23) pass the circumference surface of adjustable filter support (2) to be connected with filter (22) drive, make filter (22) rotate the regulation in the front side of adjustable filter support (2).